A cell circuit includes a first power rail, having a first line length, in a first layer. The first power rail is configured to receive a first voltage for the cell circuit. The cell circuit includes multiple lines in a second layer and a shunt in a third layer. The shunt is electrically coupled to the first power rail and a first set of lines of the multiple lines. The shunt has a second line length shorter than the first line length. The cell circuit includes another shunt in t the third layer. The other shunt is also parallel to the first power rail. The other shunt is electrically coupled to the first power rail and a second set of lines of the multiple lines. The other shunt has a third line length shorter than the first line length.